The petroleum product has seen a drastic demand in the recent past. Biofuels are the only solution to overcome this power crisis. In the view of sustainable energy development, biodiesel and its additives have become the best options for fossil fuel-based engines. In this work, a biodiesel mix was used to show the possible utilization of different biofuels. An experimental investigation was carried out on a direct-injection constant-speed (Rated speed- 1500 rpm) diesel engine at different injection pressures of 180, 220 and 260 bar with natural aspiration and supercharging modes. The blends of Biodiesel (used cooking oil, with a mix of algae) and diesel fuels are the selected fuel to investigate. At lower injection pressures, brake speciﬁc fuel consumption of the engine was low and further lowered with supercharging operation. With the reduction of injection pressures, brake thermal efﬁciency values are improved, and the same was observed with supercharging. With the rise in injection pressures, NOx emissions increased due to rise in temperature, and unburnt hydrocarbon emissions were slightly increased. The algae biodiesel was used as an additive to increase the stability of biodiesel. The overall observation indicates that a moderate injection pressure of 220 bar is advisable.

[28] A. Devaraj, D. Yuvarajan, and I. Vinoth Kanna, “Study on the outcome of a cetane improver on the emission characteristics of a diesel engine,” International Journal of Ambient Energy, pp. 1–4, Jul. 2018.

[29] I. Vinoth Kanna and D. Pinky, “Solar research – a review and recommendations for the most important supplier of energy for the earth with solar systems,” International Journal of Ambient Energy, pp. 1–7, May 2018.